When to operate on a child with precocious heart disease depends on the condition Precocious heart disease (i.e. congenital heart disease) is one of the common congenital malformations in children. About 1/2 of the children with congenital heart disease die within one year after birth due to serious heart malformations. Shu Tao introduced that children with precordial disease are prone to respiratory infections such as colds, pneumonia, and in severe cases, heart failure. If a child is born with severe precordial disease, the lips may be dark purple, especially when crying purple lips will be more serious or even the whole body purple. The age at which surgery is most appropriate in cases of precordial disease should be determined by the condition. If the deformity is heavy, the symptoms appear early, heart failure and endocarditis occur repeatedly and endanger life, surgery can be performed as early as possible without age restriction, do not hold the idea of “wait for older and then cure”, so as not to delay the disease. The majority of the children with precocious heart disease progress rapidly in infancy and childhood, but if they are detected and treated in time, most of them can be completely cured through surgery and can live like normal people after surgery. The child’s “heart disease” is mostly related to the mother Shu Tao said, many children with “heart disease” and the mother suffered a viral infection during pregnancy and childbirth related. Generally speaking, in the fourth month of pregnancy, ultrasound examination can clearly identify whether the fetal heart has congenital diseases. The causes of congenital heart disease are broadly divided into two categories: endogenous, i.e. genetic factors such as chromosomal abnormalities and genetic aberrations, and exogenous, where the more important factors are viral infections such as rubella, mumps, and influenza in the womb. The first 3 months of pregnancy is a critical period for the development of the fetal heart and a risk period for the fetus to develop precocious heart disease. Some mothers-to-be do not realize they are pregnant during the first trimester and take medications and receive X-rays, which can cause the fetus to develop preeclampsia. Advanced maternal age is also a risk factor for prenatal heart disease. Therefore, the prevention of precocious heart disease requires good health care during pregnancy, especially in the early stages of pregnancy (first trimester) to prevent viral infections; prevent gestational diabetes, do not receive radiation exposure, and avoid exposure to toxic chemicals. In addition, alcohol abuse and the use of progesterone, estrogen and anticonvulsant drugs during pregnancy may lead to fetal heart malformations. Pregnant women with the above risk factors, especially those with family members with precocious heart disease, must have fetal heart ultrasound examination around 20 weeks of pregnancy to enable early detection of abnormalities and early response.